Ningza No.21, a new hybrid rapeseed cultivar, was used as the test mate-rial in this study. The common planting models in large-scale production （3 trans-planting models and 2 direct-seeding models） were adopted. Ba...Ningza No.21, a new hybrid rapeseed cultivar, was used as the test mate-rial in this study. The common planting models in large-scale production （3 trans-planting models and 2 direct-seeding models） were adopted. Based on the high-yield cultivation, the yield and economic benefits of different planting models were investi-gated. ln addition, the labor costs, agricultural production materials costs and agri-cultural machinery costs of different planting model were analyzed to explore the low-costs and high-economic benefits planting model. The results showed the yields of the 5 planting models were al relatively high with average yield of 3 282.30 kg/hm2, ranging from 2 899.50 to 3 642.00 kg/hm2. Although the average yield and output value of transplanting models were higher than that of direct-seedling models by 429.25 kg/hm2 and 2 189.18 yuan/hm2 respectively, the production costs of trans-planting models were higher than that of direct-seedling model by 2 098.81 yuan/hm2 and the economic benefits were basical y equal. Among the costs of rapeseed pro-duction, the labor costs accounted for more than 60%. ln the labor costs, the har-vesting labor costs represented about 50%. Therefore, under current production con-ditions, the direct seeding and mechanized harvesting should be adopted in the rapeseed production to reduce production costs and improve economic benefits.展开更多
新冠疫情影响及移动互联时代的迅猛发展,学术直播活动异军突起。通过《航空学报》《Chinese Journal of Aeronautics》(以下简称“两刊”)的直播活动实践,从5个层面总结直播成效影响因素:优质内容选择,主播的行业知名度和号召力,直播覆...新冠疫情影响及移动互联时代的迅猛发展,学术直播活动异军突起。通过《航空学报》《Chinese Journal of Aeronautics》(以下简称“两刊”)的直播活动实践,从5个层面总结直播成效影响因素:优质内容选择,主播的行业知名度和号召力,直播覆盖的受众画像,合适的直播平台,恰当的营销宣传;探析学术直播助力期刊影响力提升的层面:助推行业发展,积极塑造品牌,编辑涵义更加多元。同时以两刊的直播实践思考学术直播的未来走向及可持续发展的可能,为学术期刊建立更为有效的传播途径、加快融合发展提供借鉴。展开更多
基金Supported by National Key Technology Research and Development Program(2010BAD01B06)Jiangsu Province Science and Technology Support Program(BE2012327)Jiangsu Agricultural Science and Technology Innovation Fund(CX(14)2003)~~
文摘Ningza No.21, a new hybrid rapeseed cultivar, was used as the test mate-rial in this study. The common planting models in large-scale production （3 trans-planting models and 2 direct-seeding models） were adopted. Based on the high-yield cultivation, the yield and economic benefits of different planting models were investi-gated. ln addition, the labor costs, agricultural production materials costs and agri-cultural machinery costs of different planting model were analyzed to explore the low-costs and high-economic benefits planting model. The results showed the yields of the 5 planting models were al relatively high with average yield of 3 282.30 kg/hm2, ranging from 2 899.50 to 3 642.00 kg/hm2. Although the average yield and output value of transplanting models were higher than that of direct-seedling models by 429.25 kg/hm2 and 2 189.18 yuan/hm2 respectively, the production costs of trans-planting models were higher than that of direct-seedling model by 2 098.81 yuan/hm2 and the economic benefits were basical y equal. Among the costs of rapeseed pro-duction, the labor costs accounted for more than 60%. ln the labor costs, the har-vesting labor costs represented about 50%. Therefore, under current production con-ditions, the direct seeding and mechanized harvesting should be adopted in the rapeseed production to reduce production costs and improve economic benefits.
文摘新冠疫情影响及移动互联时代的迅猛发展,学术直播活动异军突起。通过《航空学报》《Chinese Journal of Aeronautics》(以下简称“两刊”)的直播活动实践,从5个层面总结直播成效影响因素:优质内容选择,主播的行业知名度和号召力,直播覆盖的受众画像,合适的直播平台,恰当的营销宣传;探析学术直播助力期刊影响力提升的层面:助推行业发展,积极塑造品牌,编辑涵义更加多元。同时以两刊的直播实践思考学术直播的未来走向及可持续发展的可能,为学术期刊建立更为有效的传播途径、加快融合发展提供借鉴。
